Topic 6 Atmospheric System And Societies Part 1

Which of the following statements is correct?

• Ozone gas is increasing in the upper atmosphere through the action of CFCs

• Ozone gas is increasing in the upper atmosphere because of global warming

• Ozone gas is decreasing in the upper atmosphere because of the increase in the amount of nitrogen oxides produced by the combustion of fossil fuels

• None of the above statements is correct

These gases cause the Greenhouse Effect because they are and refer to the data below.

• More effective at absorbing long-wave radiation than other gases in the atmosphere.

• More effective at absorbing short-wave radiation than other gases in the atmosphere.

• Produced by human activities.

• Not broken down in the atmosphere.

Greenhouse gases not listed above are I. sulfur dioxide. II. CFCs. III. low level (tropospheric) ozone. IV. water vapour. and refer to the data below.

• II and III

• II, III and IV

• I, II and III

• I, II, III and IV

Which of these statements is correct?

• The formation of ozone involves the absorption of ultra-violet radiation

• Ozone is destroyed by carbon dioxide released by burning fossil fuels

• The type of ultra-violet radiation absorbed by the ozone layer does not affect living organisms

• Chlorofluorocarbons in the stratosphere are rapidly broken down allowing them to escape into the outer atmosphere

The highest concentration of ozone is between and refer to the graph below.

• 0–10 km.

• 10–20 km.

• 20–40 km.

• 40–80 km.

The troposphere is and refer to the graph below.

• I.

• II.

• III.

• IV.

The major greenhouse gases are

• Nitrous oxide and chlorofluorocarbons.

• Water vapour, carbon dioxide, ozone and methane.

• Carbon dioxide, nitrogen and ozone.

• Ozone, water vapour and chlorine.

The rise in the earth is mean surface temperature between 1860 and the present is considered to be caused by I. release of methane from wetlands. II. deforestation. III. burning of fossil fuels.

• I, II and III

• I and II only

• II and III only

• I and III only

Problems with replacing CFCs (chlorofluorocarbons) with HFCs (hydrofluoro carbons) are that HFCs I. are powerful greenhouse gases. II. remain in the atmosphere much longer than CFCs. III. are expensive to produce.

• I and II only

• II and III only

• I and III only

• I, II and III

Which column in the table correctly shows the effects of the pollutant gas?

• A

• B

• C

• D